print('Hello, world!')

print("hahas")
print("hahas")

print("2020年7月19日16:22:07")
print('Hello, world!')
print("hello")
"""
i = 100
b = i + 10

print("hahas")if b == 110 :
    print("b is 110!")
    print("b is 110!")
print("b is 110!")
print("b is 110!")

while b == 110:
    print("ahahahah")

遍历
int a[100];

for(int i = 0; i < 100; i++)
{
    printf("%d\n", a[i]);
}
"""

a = [1, 2, 3]

for i in a:
    print(i)
    
    
"""int add(int a, int b)
{
    return a+b;
}"""

def add (a, b):
    return a+b